swamp maple vs Acer rubrum

swamp maple and Acer rubrum both are nouns.

Word	Noun	Adjective	Verb	Adverb
swamp maple	Yes	No	No	No
Acer rubrum	Yes	No	No	No

As nouns, swamp maple and Acer rubrum are synonyms defined as:

swamp maple and Acer rubrum: maple of eastern and central America; five-lobed leaves turn scarlet and yellow in autumn

Other synonyms of swamp maple include red maple, scarlet maple.

swamp maple (noun)	Acer rubrum (noun)
maple of eastern and central America; five-lobed leaves turn scarlet and yellow in autumn	maple of eastern and central America; five-lobed leaves turn scarlet and yellow in autumn